Answer:
Conviction ; belief ; B ; A ; B ; B
Explanation:
A strong belief one has about a specific subject, event or notion is called conviction
Belief could be defined as a mental inclination or idea which is supported through one's religion, culture or tradition.
Jessica became certain after watching the movie : This shows conviction
Mike's observation from the movie made him think this way. There Is no such certainty in his belief. Hence, this is just a belief.
Also the other two questions reported phrases (strongly, firmly) which shows conviction.